Comparison of the EasyTube® and endotracheal tube during general anesthesia in fasted adult patients

Veit Lorenz, James M. Rich, Karl Schebesta, Sevak Taslakian, Michael Müllner, Michael Frass, Ernst Schuster, Udo M. Illievich, Alan D. Kaye, Sonia Vaida, Peter Krafft

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13 Scopus citations


Study Objective: To evaluate the effectiveness, safety, ease of placement, and ventilatory parameters of a new alternate airway device, the EasyTube® (EzT; Teleflex Ruesch, Research Triangle Park, NC), in comparison to the endotracheal tube (ETT). Design: Prospective, randomized controlled trial. Setting: University Hospital. Subjects: 200 adult ASA physical status I and II patients scheduled for surgery. Interventions: Patients were randomized to two groups, one to receive ventilation via the EzT (n = 100) or the ETT (n = 100). After preoxygenation and induction with fentanyl and propofol, patients received muscle relaxation. The respective airway device was then inserted and mechanical ventilation was instituted. Measurements: Ease of insertion, number of insertion maneuvers, time until airtight seal of the airway was achieved, duration of surgery, leak pressure as well as arterial oxygen saturation (SpO2), and end-tidal carbon dioxide (ETCO2) data, were recorded. Main Results: Mallampati airway class was higher in the EzT group (P < 0.029), while thyromental distance showed no difference between the two groups. Ease of insertion was noted in the EzT group (P < 0.043). Number of insertions was equal in both groups; insertion time was shorter with the EzT (15.5 ± 3.6 sec vs. 19.3 ± 4.6 sec; P < 0.0001). Leak pressure and SpO2 were not significantly different, while ETCO2 was lower with the ETT (P < 0.024). Adjustments had to be made for two EzT group patients. No difference in frequency of laryngo-pharyngeal discomfort was observed in either group. Conclusion: Insertion of an EzT appears to reduce time and facilitate placement of an airway device when compared with direct laryngoscopy and tracheal intubation.

Original languageEnglish (US)
Pages (from-to)341-347
Number of pages7
JournalJournal of Clinical Anesthesia
Issue number5
StatePublished - Aug 2009

All Science Journal Classification (ASJC) codes

  • Anesthesiology and Pain Medicine


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